Weather strip



Nov. 27 1923. 1,475,640

L. A, M KL NBURG WEATHER S TRI P Filed April 29. 1922L0ui5A.Macklanbur:5r.

3mm, a citizen of the in the county of Oklahoma and State of Oklahoma,have invented cercorresponding Patented Nov. 27, 1923.

LOUIS A. MACKLANBURG, OKLAHOMA, OKLAHOMA.

WEATHER STRIP.

Application filed April 29, 1922. Serial No. 557,253.

To all whom it may concern:

Be it known that I, LOUIS A. MACK AN- United States, residing atOklahoma city,

tain new and useful Improvements in Weather Strips; and I do herebydeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same. j

his invention relates to strips of-springy sheet material adapted to besecured between the edge of a sash, door or other closure and its framefor the purpose of excluding dust and air currents. I object of theinvention is to enable elastic metallic weather strips to be secured bynails or other headed fastenings without leaving the heads protrudingabove the gene. eral surface of the strip and without the necessity ofperforming countersinks in the stri Tlie object is attained in atransversely elastic metallic strip having a suitable offset edge, orsuitable edges, for engaging with a relatively movable member, andhaving an embossed or rolled rib in relief, or convexed on the face ofthe strip, extending longitudinally thereof along the zone through whichthe nails or other headed fastenings are driven to secure the strips inplace. Nails driven through this transversely convexed zone may be sunksurface thereof by the final blow of the hammer thus depressing thematerial around the nail head while the spaces left between the sunkenheads of the nails serve as a cushion and ide means for the relativelymovable memi r, such as the edge of a sash,

even should theelastic engaging portion of the weather strip be forcedin so far that the edge of the movable member contacts with the embossedrib.

In the accompanying drawings in which reference characters designatecorresponding parts throughout the several views:

Figure l is a cross section through apiece of weather strip made inaccordance with this invention;

Figure 2 is a cross section through a fragment of a window casing andsash illustrating the improved weather strip nailed to the casing;

Figure 3 is a view of a fragment of beneath the general secure theweather strip of the embossed portion peather strip nailed in placelooking at the ace;

Figure 4 is a longitudinal section on the line H of Figure 3;

Figures 5 and 6 are cross sections of a slightly modified form;

Figures 7 and 8 are cross sections of a further modified form, and

Figure 9 is a cross section of still another form.

Refarring to the drawings, 1 indicates a-lportion of a window casing; 2the usual windo'w stop; 3 the separating strip, and 4 one"of the'stilesof a sash. W indicates, as a whole, an elastic weather strip, shown inFigure 2, as nailed to the window casing within the groove lying betweenthe stop 2 and the separating strip 3, the offset edge of said stripengaging the stile and sealing the space against the entrance of aircurrents and dust. The weather strip W may be composed of a thin pieceof hard sheet brass or other suitable sprin material formed by suitablyfluted, ribbe or grooved bending rolls so as to have a rib transverselyconvexed or embossed, to form a rolled zone 10 in relief on the faceside of said strip and a corresponding groove or channel on the backside thereof. When this stri is nailed in place the edge 11 and the bead12 on the back side of the strip bounding the channel come in contactwith the base to which it is nailed, usually the window casing.Extending from the rib l2 obliquely outward and forward, away from thebase, is the relatively broad elastic portion 13 at the edge of which isa recurved bead 14 the convex face of which is intended to engage withthe sliding member,as with the inner edge of the stile of a window sash.Thus a smooth bearing surface is provided for the stile and sharp edgeswhich would cut into and wear the wood are avoided. The strip is securedin place usually on the window casing between the stop 2 and separatingstrip 3' by driving nails 15 at ihtervals through the embossed convexedzone 10. The final blow of the hammer in driving the nail home causesthe head of the nail to depress the region surrounding it and sinks thehead of the nail below the normal surface of said embossed ridge asshown in Figures 2, 3 and 4. Between the heads of the several nails orother fastenings which in place the metal will retain its origpushed inagainst the bead 14 so far as to come in contact with the embossedportions of the strip between the nail heads ,there will be no headsprojecting to engage with the stile and cut, or wear it, or catch on itto render the opening and closing of the sash I tion and the strip" isshown as vexed on the face of concerned as in t The preferred form of myweather strip is that which is illustrated in Figures 1, 2, 3 and 4.Various modifications thereof may be made, however, that preserve theprinclpal feature of utility adapting the weather strip to be nailed inplace, without the previous formation of countersunk ortions, wherebythe driving of the heade fasteners causes them to sink into a convexedembossed portion and bury their heads below the face surface thereof. InFigures 5 and 6 the embossed portion 10 is rounded in cross secribbed orlongitudinally embossed alon parallel lines, as at 16 and 17,principally or the purpose I of rendering the strip stifferlongitudinally in orderto prevent it from bending over and to make itmore convenient for handling during nailing. In the form shown inFigures 7 and 8 the embossed or rolled nailing zone 1O formsapproximately a wide a le. in cross section and when nails are riventhrou h this embossed zone 10 the material imme iately, surrounding thenail head when the latter .is driven home will be flattened out whilethe portion of said embossed zone between the nail heads will retainsubstantially its original ribbed form except for the distortionproduced adjacent the nail head.

Although I prefer to use a strip nailed adjacent one edge, the freeobliquely projected edge elastically engaging the edge 0 the stile orother relatively movable memher, the Weather strip may be madetransversely curved in cross section, of symmetrical contour, having tworecurved engaging ed es as illustrated in Figure 9 with a centra rolledor embossed portion 10 conthe strip, extending longitudinally midwaybetween the stile engaging edges and forming a convexed ridge or zone aong the middle of the face side of the strip. Nails or other headedfasteners driven through the nailing zone 10 to secure the stri to thecasing will depress the embossed ridge at and around the head so thatthe outer surface of the head will be sunk below the general surface ofthe rib and the effect will be the same inso far as the countersinkinglof the fastener heads is e other forms.

Although it is contemplated that the improved weather strip shall besecured by nails or screws to the casing of a sli door or window, itwill be obvious that the benefits of this improvement may be ob;

13 therein, a weather and holding secure said strip dmsga tained bynailin or screwing the, strip to 1. A weather strip of thin, sprinmaterialhaving a convexed zone for t e re-.

ception of means for securing said. strip in operative position, thethickness of the ma terial in said zone being so related to theelasticit thereof that only the portion immediate y adjacent thesecuring means 1s depressed when the latter is forced to operativeposition.

2. A weather having a longitudinall convex cross section means forsecuring said position, the thickness of the ,mat'erial in said. zonebeing so related to the elasticity thereof that only theportion'immediately adjacent the securing means is depr when the latteris forced to operative position.

3. In combination with a casing member and a closure member movablymounted therein, a weather strip of thin s 'ringy sheet material herehaving an e'mbossed'zone in relief along the face of the stri and headedfasteners penetrating the em (1 zone and seated in said member havintheir heads depressed below-the er surface of said relief zone and hoding only the material, around said heads depressed and in contact withsaid member. 1

4. In combination with a casing member and a closure member movably'mounted strip of thin 'springy material having an em zone in reliefalong the face of the strip and longitudinally spaced headed fastenerspenetratin the embossed zone and seated in one of sai members havingtheir heads depressed below the general surface of said relief zone onlythe part of the zone around'said' heads depremed and in contact withsaid member.

strip of resilient sheetmetal extending zone of or the reception of 5. Aweather strip of springy sheet ma-' terial having an embossed zone inrelief extendin longitudinally on the th1ckne$ and resiliency of insaid, zone being so" related that, headed fasteningsmay in place withoutde resing, said zone except t imany portions of strip in operativecarried by one of sai memthe face thereof the material be driventherethrough tomediately around-said'fasteners, and a resilient engagingportion extendin obliquely forward and having a recurve free edge theconvex face of which-is ada; ted to Ten e a" relatively. slidable" memr.

n testimony whereof I afiix my signature.

LOUIS A. MACKLANBURG.

